Before diving into complex troubleshooting, try giving the game higher system privileges. Windows often blocks GTA 4 from writing new save files to your Documents folder.
This error usually has nothing to do with your actual hard drive space. Instead, it is almost always caused by modern Windows security features, broken Games for Windows Live (GFWL) files, or folder read/write permissions. gta 4 save failed please check your storage link
If you are playing an older version of the game or a retail disc version, GTA 4 relies on the defunct Games for Windows Live system to handle save games. Since GFWL is dead, it frequently causes the "check your storage" error. Before diving into complex troubleshooting, try giving the
Copy and paste xlive.dll directly into your main GTA IV installation folder (where GTAIV.exe is located). Launch the game. Instead, it is almost always caused by modern
Search the web for and download the xlive.dll file from a trusted GTA modding site. Extract the xlive.dll file.